Q: Is 615,000 a Prime Number?
A: No, 615,000 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 615000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 41 50 60 75 82 100 120 123 125 150 164 200 205 246 250 300 328 375 410 492 500 600 615 625 750 820 984 1,000 1,025 1,230 1,250 1,500 1,640 1,875 2,050 2,460 2,500 3,000 3,075 3,750 4,100 4,920 5,000 5,125 6,150 7,500 8,200 10,250 12,300 15,000 15,375 20,500 24,600 25,625 30,750 41,000 51,250 61,500 76,875 102,500 123,000 153,750 205,000 307,500 and 615,000, with no remainder.
Since 615,000 cannot be divided by just 1 and 615,000, it is not a prime number.